Hinge



Jan. 30, 1940. I I s, WAGNER 2,188,670

HINGE Filed s t. 22, 1937 INVENTOR ROBERT s. WAGNER ATTORNEY PatentedJan. 30, 1940 1 PATENT OFFICE 2,188,670 HINGE Robert S. Wagner,Milwaukee, Wis., assignor to E. R. Wagner Manufacturing Company,Milwaukee, Wis., a corporation of Wisconsin Application September 22,1937, Serial No. 165,040

2 Claims.

This invention relates in general to hinges and more particularly tohinges of the type which have prongs for securing themto the parts whichthey hingedly connect. I One of the objects of the invention is toprovide a hinge of this character which has its prongs so constructed asto be capable of being driven in and firmly secured to even very thinpieces of various materials without danger of splitting or cracking thesame. For example, the prongs may be readily driven into thin piecesoi'hard wood without danger of splitting.

Another object of the invention is to provide a hinge of this characterand having these advantages and which is simple and durable inconstruction, attractive in appearance, reliable and effective in use,and easy and comparatively inexpensive to manufacture and apply.

Other objects and advantages reside in certain and combination of partswhich will be hereinafter more fully described and particularly pointedout in the appended claims, reference being had to the accompanyingdrawing forming 5 a part of this specification and in which:

Figure 1 is a fragmentary view in elevation showing a hinge embodyingthe present invention;

Figure 2 is a fragmentary view in transverse section taken on line 2-2of Figure 1;

Figure 3 is a view in cross section taken on line 3-3 of Figure 2 andshowing the construction of the prongs with which the hinge is equipped;

Figures 4, 5, 6, 7 and 8 are views similar to Figure 3 but illustratingmodified prong constructions; and V Figure 9 is a fragmentaryperspective view further illustrating the prong structure shown inFigures 2 and 3.

In the drawing the hinge is designated generally at H and isshownapplied between a box B and its cover C, the box and the cover beingconstructed of thin pieces of hard wood or of any othersuitablernaterial. I

The hinge illustrated comprises a pair of leaves designated at it) and Hwhich may be formed with integral interfitted hinged barrels l2pivotally interconnected by means of a hinge pintle pin I3. The leavesproper may be of any suitable structure or design. Usually they areornamental in character and specially so when applied to jewelry boxesor the like. Each leaf of the hinge is provided with one or more prongsnovel features of the construction, arrangement.

designated generally at I4 and in the structure illustrated the outeredge of each leaf is provided with one such prong adjacent each end. Theprongs are stamped from the same piece of metal which makes up the leafwith which they 5 are integral.

In Figures 2, 3 and 9 the prongs are shown as being of curved orconcavo-convex cross section and terminate in pointed ends Hi. In manyinstances it is desirable to have the curved cross section of the prongof the character shown in Figure 3 and the prong when so formed presentsside edges Hi. When such a prong is driven into the wood of the box orcover the edges cut across the grain to effectively prevent a wedgingaction of such a character as to result in splitting of the Wood andconsequently the fastening or securing action is enhanced. This actionof the prong results from the fact that the side edges which exert thecutting action are presented 20 laterally or transversely to the fibersof the wood and hence will cut them rather than wedge them apart.Moreover, the body of the prong being displaced laterally from the meanplane of the prong also lies laterally or transversely of the woodfibers and hence will not Wedge them apart. In some instances it may bedesirable to have the prong of a more pronounced curvature in crosssection as shown at I! in Figure 4. The advantages of the invention maybe approximated with other cross sectional shapes for example, the prongmay have a rather pronouncedly curved body l8 and lateral flanges I 9 asshown in Figure 5 or the curvature of the body may be fiattened as shownat 20 in Figure 6 or may be made V-shaped as indicated at M in Figure 7.In Figure 7 the V-shaped prong has lateral flanges 22 but as indicatedin Figure 8 these may be omitted and the prong assembly have the V-shaped cross section. indicated at 23.

In any event, the important feature of the invention is to have a prongof channel or curved cross section and provided with edge formations ofsuch character thatthey will cut across the grain. of the wood and avoidany such wedging action as to result in splitting.

The prongs may be simply embedded in the wood or they may completelypenetrate it and be clamped over as indicated at M in Figure 2.

While Ihave shown and described several constructions in which theinvention may be advantageously embodied, it is to be understood thatthe constructions shown have been selected merely for the purpose ofillustration. or example and that various changes in the size, shape andarrangement of the parts may be made without departing from the spiritof the invention or the scope of the subjoined claims.

The invention claimed is:

1. A hinge having pivotally interconnected lightweight sheet metalleaves, and a prong integral Withone of said leaves, said prong having amean plane parallel to the axis of said pivotal 10 interconnection andbeing curved transversely in cross section to provideedges disposed fromsaid I mean plane.

2. A hinge leaves, one of said leaves having a rear edge parallel withthe axis of said pivotal intercon nection, a prong integrally formed onsaid edge,

having pivotally interconnected said prong being of concavo-convex crosssection throughout its length, the axis of said cross section beingdisposed perpendicularly to said edge.

' ROBERT S. WAGNER.

